Bottle cap



FIG. 1 is a top and front view of a bottle cap, showing my new design; and,

FIG. 2 a front elevational view thereof, the rear elevational view being a mirror image of the front view shown.

The transparent support for the cap and the color of the cap shown form no part of the claimed design and are hereby disclaimed. 

The ornamental design for a bottle cap, as shown. 